Geothermal Heating & Cooling: Las Cruces's Choice! To be perfectly accurate, let's put it this way: more and more Las Cruces residents are finding out that geothermal is the smarter heating and cooling choice. And we're helping them recognize that. We're Sun City Plumbing & Heating. And we know all about the perks of geothermal heating and cooling. After all, we've been installing and maintaining geothermal systems for a long time. Why are more people switching to geothermal? To start with, Las Cruces is located in a region with perfect ground conditions for geothermal installation. We've also got the kind of changing temperature extremes that let a geothermal system demonstrate its year-round comfort potentiality to best effect. Consider the savings, too. Our Geothermal Savings Calculator can provide you with a good idea of what they'd be for your family. Learn more. Contact Sun City Plumbing & Heating, your Las Cruces, New Mexico geothermal authority.